I´m building a system with an i5 4570 and 2x4gb 1600mhz. I narrowed down my choice to one of these mb: gigabyte ga-z87m-d3h or ga-h87m-d3h, The only difference is that the z87 allows RAM overclock speeds higher than 1600 while the h87 not. I could get a faster RAM in future so I might use the z87 capability but my question is, since the i5 4570 natively supports only 1333 1600 DDR3 is there a sense in paying extra for the z87??? or the i5 4570 chip will allow me to use speeds faster than 1600???